CVE-2016-4432: Apache Qpid Java AMQP Connection Handling Authentication Bypass
Summary
CVE-2016-4432: The AMQP 0-8, 0-9, 0-91, and 0-10 connection handling in Apache Qpid Java before 6.0.3 might allow remote attackers to bypass authentication and consequently perform actions via vectors related to connection state loggin... Affects org.apache.qpid:qpid-broker-plugins-amqp-0-8-protocol versions < 6.0.3. Fixed in 6.0.3. How to fix ↓
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Background
Apache Qpid Java is a messaging broker that implements the Advanced Message Queuing Protocol (AMQP) for reliable and scalable messaging. It provides support for various versions of the AMQP protocol, including 0-8, 0-9, 0-91, and 0-10. These versions handle connection establishment and management between clients and the broker. However, a vulnerability in versions prior to 6.0.3 allows remote attackers to bypass authentication and perform unauthorized actions by exploiting weaknesses in the connection state logging mechanism.
Vulnerability Detail
The vulnerability (CVE-2016-4432) in Apache Qpid Java versions before 6.0.3 enables attackers to bypass authentication and gain unauthorized access to the messaging broker. By exploiting weaknesses in the connection state logging, remote attackers can perform actions that should be restricted to authenticated users. This can lead to various security risks, including unauthorized data access, message tampering, and disruption of messaging services.
How To Fix
Latest published version: 10.1.1 as of 22 Oct 2026
Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
6.0.3
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is strongly advised to upgrade to the fixed version as soon as possible.
Conclusion
The vulnerability in Apache Qpid Java versions prior to 6.0.3 allows remote attackers to bypass authentication and perform unauthorized actions. To mitigate this risk, it is crucial to upgrade to the fixed version as soon as possible. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
Apache Qpid Java is a messaging broker that implements the Advanced Message Queuing Protocol (AMQP) for reliable and scalable messaging.
Versions of Apache Qpid Java prior to 6.0.3 are affected by this vulnerability.
The vulnerability allows remote attackers to bypass authentication and perform unauthorized actions, potentially leading to data breaches, message tampering, and disruption of messaging services.
No, there is no known workaround for this vulnerability. It is recommended to upgrade to the fixed version.
You can upgrade to the fixed version (6.0.3 or later) by following the official upgrade instructions provided by the Apache Qpid project.
